A father pulls his son to school on a sled during the morning commute in the Park Slope section of Brooklyn

By tomorrow, the Gulf Coast states will face a hard freeze with temperatures around -6C in places like Tulsa, Oklahoma, which is on the same latitude as Tunisia.

But there are parts of the U.S. that aren’t freezing and fighting Jack Frost.

The west coast is seeing some summerlike beach weather.

San Fernando, California, clocked a 32C high and Southern California temperatures will remain warm thanks to a lingering high pressure system.

The coldest place in the continental United States has been International Falls, Minnesota on the Canadian border.

Overnight, the city had temperatures approaching -40C with wind chill making it feel like -60C.

Dave Mangin braves sub-zero temperatures as he walks along the shore of Lake Michigan, in Milwaukee

Ivy the dog take his morning walk in the Park Slope section of Brooklyn

'It’s kind of raw. It really cuts your skin,’ said Belmer Cole who maintains an outdoor high school ice rink in the city.

The colder temperatures make the ice dry and brittle, which makes skating tougher.

'When the ice gets this cold, and the temperature this cold, the puck freezes to the point where if it hits a goal post, sometimes the puck would break into pieces,’ said International Falls High School hockey coach John Prettyman.

But residents of International Falls are used to bitter weather. It’s a way of life for them, especially the ice fishermen.

A bird flies through steam hovering over the Menomonee River, Milwaukee: Temperatures in the region are below zero

But chilly temperatures are potentially deadly for those without heat. The cold can be more harmful than even the hottest summer days.

'The problem is that cold hurts you much more rapidly and more uniformly. You can put a number of folks in the desert, many of them will do fine,’ said Wallace Carter, of New York Presbyterian Hospital.

'You can take 10 people, put them out in sub-zero weather and they will all start to have serious side effects and will ultimately die.

'Most people think that they are well prepared and in fact they’re not well prepared. People underestimate how incredibly insidious and violent cold temperature is.’

Steam on Lake Michigan, Chicago: Temperatures are currently around -9C